M 5.7 earthquake: South Atlantic Ocean (South Georgia and the Islands) — October 23, 1971

M 5.7 earthquake: South Atlantic Ocean (South Georgia and the Islands) — October 23, 1971. Epicenter 764 km SE of Grytviken, depth 25 km, 21:01 Local (1971-10-23 23:01 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (764 km SE, South Georgia and the Islands) — -57.32, -25.523

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